Nibe Fighter 360p

nick49

hi,

i'm hoping someone can help, i've just moved into a new build house with a Nibe Fighter 360p boiler installed. does anyone have any experience of these?? i understand the basics of it in that there are 3 settings
summer: only gives hot water
Autumn/Spring: which gives heating and hot water
Winter: i think is the same as above but believe it uses the immersion to heat water.
i've had it set on summer as we havent moved in yet and are just moving things over, but when i go and check it, it seems to have changed to winter! does anyone know why this is? we've used 70 units of electricity in 8 days with just the fridge on and the boiler which seems high to me if thats all thats on. Think this could end being v.expensive

any help on this would be really appraciated

nick49

sorry should say appreciated.

gas4you

I have a feeling this may be a Vaillant.

keystone

Swedish hreat pump thingy. Have you a) Checked the User Instructions, b) rang NIBE UK Customer Support in Chesterfield to get their input or c) spoken to the previous occupant? Surely you checked the energy usage of the property before purchasing so

Think this could end being v.expensive

shouldn't be a shock?

Cheers

Canucklehead

Good morning:the Nibe uses weather compensation hence automatic temperature control...snazzy piece of kit. More details here if you don't have the manual.

Btw...if you're not yet occupying the property then limited ambient heat is available to the system i.e. heat generated internally from lighting, occupants and domestic appliances is also utilised through heat recovery so greater reliance on electricity at the moment.

HTH

Canucklehead

denial2010

Hello all,

I don't mean to dig up an old thread. I've got this heat pump installed in my new build house. I've put it into Winter mode and found it was eating KWh like no tomorrow. In some cases 40+KWh per day! £100 electric bill in a month certainly caught my attention.

I've spent some time reading the manual over and over again, as well as watching the heat pump display and the energy meter. In winter mode, the unit seems to use the immersion heater as and when it likes (and it's that which costs a fortune) to keep the hot water at a constant temperature.

I thought I'd share some insight into what I've been up to, to help keep the costs down. I've switched mine into Auturm/Spring mode and the compressor seems to be doing a stirling job at keeping the house warm at 19-19.5 degrees. I've also set setback times to reduce the heating curve offset during the day (-10) (when I'm not there) and over night (-5) (normally this will dip to 17 degrees). So far this is using about 15KWh per day (which is certainly a nice improvement). The setup is using radiators, with no underfloor heating. So the heating curve is 13 with an -2 offset.

The only problem with this is by the evening the hot water temperature has fallen to 30ish degrees. Its in the 50's in the morning and cools thoughout the day because of the lack of an emersion boost. Even if another emersion boost is timered with the XHW function for early evening I would expect it to be no more than 20-25KWh for the day (again, a marked improvement).

Just wondering if anyone else cared to share their experiences with this unit. I can find very little of the Internet apart from people moaning at the astronomical cost.

Thanks.

Aceboyz

Hi all,

We moved into a new build (3 bed semi-detached house) 6 weeks ago and were told the house we were having was very efficient, all of the lighting is energy saving fittings with energy bulbs, no gas and a nice new Nibe Fighter 360p system, which saves you at least 60% on your bills then anything or anybody else can do for you.

Sorry but this is certainly not the case, we have had our first electric bill and for a 4 week period the bill came to a whopping £178.00. We have already been told that on the current costs per day this month we will receive a bill for approx £186.00.

We have been asked to keep a daily log of the kW/Hr being used as it seems the counter is going round quicker than a whippet on fire. After the bill we were running on the autumn/spring setting, then after the bill we spoke to Nibe and they advised us to put the system onto the winter setting, wow what a mistake. After just 2 days we noticed that the daily cost went from £4.86 to £7.90, this was quickly set straight back to the spring setting.

We are currently trying to find out how to get this not so cost effective system to work how so many people have been promised it can do. Yesterday after setting the system back to spring we think the Nibe turned the water off and on the night setting the kW used overnight went from 35 used to 7, so today we have switched the water off completely until tomorrow when we take our next reading just to see if this brings the bill down because at the moment i refuse to pay anything and am quite willing to take Nibe to court for false advertising. The association i am with is also willing to make Nibe pay a hell of a lot of money, to the point where they will be willing to make nibe rip the system out and make them pay for a replacement gas boiler as they were also lied to about the cost saving this system can do.

We moved from a 4 bed detached (a lot bigger house than where we are now) a run down gas boiler and we were paying £60 for electric and £60 for gas, which i thought was reasonable and then we came here wow what a shocker.

I am so pleased to find others with similar problems, however i must add i wish you didn't have the same problems but at least for us we are getting some information about this massive useless unit.

The Nibe was setup for us when we moved in (spring setting, normal fan speed and 24Hr water), we were told never to touch and to never switch it off, which to be honest i can understand because it would take ages to pull the energy back to get the unit running properly again.

Our overall payment per month is supposed to be a max £60.00, please if anybody has any further advice or well just anything please can you let me know.

We are also very aware that the thermostat outside will override anything you do in the house if it gets cold, which at the moment it is extremely cold and the boiler ramps up to keep you warm.

Thanks

denial2010

Aceboyz wrote: »

Yesterday after setting the system back to spring we think the Nibe turned the water off and on the night setting the kW used overnight went from 35 used to 7, so today we have switched the water off completely until tomorrow when we take our next reading just to see if this brings the bill down because at the moment i refuse to pay anything and am quite willing to take Nibe to court for false advertising.

How are you getting on? By the way... How did you change the setting not to have 24H water? I can't seem to find it in the menus. Service or otherwise?!

Nibe are sending an engineer to check over the system in the new year. The installation company didn't have a clue about how to configure it. Nibe suspect that there not enough air intake, so it is having to use the emersion more than it should on the winter setting. But I will of course update once the guy has been!

By the way, also on the subject of these heat pumps. Do you know if they qualify for the RHI taffifs coming in next year?

Aceboyz

denial2010 wrote: »

How are you getting on? By the way... How did you change the setting not to have 24H water? I can't seem to find it in the menus. Service or otherwise?!


By the way, also on the subject of these heat pumps. Do you know if they qualify for the RHI taffifs coming in next year?

Hi, thanks for replying to our post. We have tried everything to get the system to be cost effective and we finally got it down to about £3.00 per day, this is an approx amount as different charges get put on for the first units and it wasn't including the night reading. This still works out to be about £85/£90 per month which on the whole is reasonable, however not what we were told and to be honest for this 24hr trial we had to freeze and had no hot water so realistically unusable at this time of year.

I think we have the same as you, we have 3 special air vents around the house, which is supposed to catch warm air and send it back to the boiler and we have been clearly told for every 1kW of energy we use the boiler is supposed to generate a further 3kW, there is no way this is happening. The Nibe people have told us as well that the vents aren't open enough but to be honest if you were to open them anymore the covers would fall off.

with regards to your question about switching the water off where the control panel display is we have 3 buttons to the right, one for changing year setup i.e. winter setup, autumn/spring setup and the summer setup. The next button down is the water one when we press ours we change our water usage from 24hrs to 12hrs, 6hrs, 3hrs or Off.

Do you have anymore information on this RHi tariffs please? never really heard of this before.

denial2010

Aceboyz wrote: »

with regards to your question about switching the water off where the control panel display is we have 3 buttons to the right, one for changing year setup i.e. winter setup, autumn/spring setup and the summer setup. The next button down is the water one when we press ours we change our water usage from 24hrs to 12hrs, 6hrs, 3hrs or Off.

Do you have anymore information on this RHi tariffs please? never really heard of this before.

Thats the extra hotwater function (XHW). Where you can order the heatpump to raise the water temperature above the 55 degree standard for a set period (3h, 6h, 12h, etc). If you had that set on 24h... no wonder it was costing a bomb cause the emersion would always be kicking in even more to keep the temperature hotter! Afaik, the heatpump does 24h hot water as standard. I have my XHW function set to off. Under the spring setting its 55 degrees in the morning but it has fallen to 30 degrees by the evening. I may timer a 3h emersion boost in the evening using the said XHW function. The RHI tariffs are meant to be coming in next year where the government will subsides your electric bill. Heatpumps are 7p for every KW/h. Not sure if covers exhaust air heatpumps tho.

MX5huggy

Aceboy, you have to take into account that you have probably lived through the coldest 6 weeks for a very long time. The 1 kW turning into 3 is at the top end of what is possible for a ASHP when the outside temp is above 7 or more at -5 or less they get closer to 1 in 1 out.

Do you have underfloor, rads or fan coils? what flow temp have you specified it should be about 40 or so, alot cooler than a Gas system.

Have a look at this report for a discussion of Heat Pumps http://www.energysavingtrust.org.uk/Generate-your-own-energy/Heat-pump-field-trial

They are complicated machines that need a higher level of user understanding than a boiler but they can be made to work if set up correctly.